Ah, maybe. Meaning that half of the babies will be homozygous for the silkie-feathering gene, and will have silkie feathering, and half of them will be heterozygous like their papa and have normal feathering. A silky-feathered, three-quarters-silky offspring might look fairly like a regular silky, but color and conformation will be off, and the comb might be as well. I tried crossing my half-silky roo with a full silky hen, but it was like some kind of curse: every one of the four chicks came to some awful end or another before they had reached their juvenile plumage. So I don't know what they would have looked like as adults. I think they all had the fifth toe and dark skin coloration.
Too, it's unusual for a half-silky to have a straight red comb; there's a chance that the white roo is a little less than 50% silky. Hard to say! That's the fun thing about genetics: they don't always do what we expect them to.